nuclear magnetic resonance


nuclear magnetic resonance
the absorption and emission of high-frequency radio waves by the nuclei of certain elements when placed in a strong magnetic field. The strongest signal is obtained from hydrogen atoms, which are abundant in the water and organic molecules in the body. In clinical use for magnetic resonance imaging, the signal is highly dependent on the concentration and mobility of water molecules within each tissue. NMR has important applications in noninvasive diagnostic techniques. See also magnetic resonance spectroscopy.

Medical dictionary. 2011.

Look at other dictionaries:

  • nuclear magnetic resonance — n 1) the magnetic resonance of an atomic nucleus 2) chemical analysis that uses nuclear magnetic resonance esp. to study molecular structure abbr. NMR see MAGNETIC RESONANCE IMAGING * * * a measure, by means of applying an external magnetic field …   Medical dictionary

  • nuclear magnetic resonance — u cle*ar mag*net ic res on*ance n. (Physics) The specific absorption and re emission of electromagnetic radiation at characteristic wavelengths by atomic nuclei in a magnetic field. It is abbreviated {NMR}. The wavelength of the radiation… …   The Collaborative International Dictionary of English

  • nuclear magnetic resonance — n. a phenomenon exhibited by various atomic nuclei when placed in a strong magnetic field, in which they absorb energy from specific, high frequency radio waves: the measurements of the magnetic moments of these nuclei, esp. of hydrogen, are used …   English World dictionary

  • nuclear magnetic resonance —  Nuclear Magnetic Resonance  (NMR)  Ядерно магнитный резонанс (ЯМР)   Явление резонансного поглощения радиочастотной электромагнитной энергии веществом с ненулевыми магнитным моментами ядер, находящимся во внешнем постоянном магнитном поле.… …   Толковый англо-русский словарь по нанотехнологии. - М.

  • Nuclear magnetic resonance — This article is about the physical phenomenon. For its use as a method in spectroscopy, see Nuclear magnetic resonance spectroscopy. NMR redirects here. For other uses, see NMR (disambiguation). First 1 GHz NMR Spectrometer (1000 MHz,… …   Wikipedia

  • nuclear magnetic resonance — Physics. the selective absorption of electromagnetic radiation by an atomic nucleus in the presence of a strong, static, magnetic field: used in research and in medicine to monitor tissue metabolism and to distinguish between normal and abnormal… …   Universalium

  • Nuclear Magnetic Resonance — Ein 300 MHz NMR Spektrometer Die Kern(spin)resonanzspektroskopie (NMR Spektroskopie von engl. nuclear magnetic resonance) ist eine spektroskopische Methode, welche die Untersuchung der elektronischen Umgebung einzelner Atome und der… …   Deutsch Wikipedia

  • nuclear magnetic resonance — magnetinis branduolių rezonansas statusas T sritis fizika atitikmenys: angl. nuclear magnetic resonance vok. kernmagnetische Resonanz, f; magnetische Kernresonanz, f rus. ядерный магнитный резонанс, m pranc. résonance magnétique nucléaire, f;… …   Fizikos terminų žodynas

  • nuclear magnetic resonance — magnetinis branduolių rezonansas statusas T sritis Standartizacija ir metrologija apibrėžtis Radijo bangų rezonansinė sugertis branduoliuose, esančiuose pastoviame magnetiniame lauke. atitikmenys: angl. nuclear magnetic resonance vok. magnetische …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • nuclear magnetic resonance — magnetinis branduolių rezonansas statusas T sritis chemija apibrėžtis Radijo bangų rezonansinis sugėrimas branduoliuose, esančiuose pastoviame magnetiniame lauke. santrumpa( os) MBR atitikmenys: angl. nuclear magnetic resonance rus. ядерный… …   Chemijos terminų aiškinamasis žodynas

  • nuclear magnetic resonance — noun resonance of protons to radiation in a magnetic field • Syn: ↑NMR, ↑proton magnetic resonance • Hypernyms: ↑magnetic resonance …   Useful english dictionary


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